|Known Relatives:||Claudia (mother)|
|Portrayed By:||Emmalee Thompson|
|First Appearance:||Halloween H20: Twenty Years Later|
Casey was the young daughter of Claudia. On October 31, 1998, Casey needed to use a restroom, and so she and her mother stopped at a rest area. The women's room was locked, and Claudia opted for them to use the men's room. Claudia decided to keep the door open by using a rock to hold the door.
As soon as Claudia and Casey stepped into their respective stalls, serial killer Michael Myers—fresh off a 20-year hiatus—came into the restroom and closed the door, then swiped Claudia's pocketbook. Claudia caught a glimpse of Michael's white mask as he exited the restroom.
Seconds later, Casey frightened her mother when she screamed in apparent terror. However, Casey was only screaming because spiders had fallen on her head, thus relieving Claudia, whose car was promptly stolen by the revitalized lunatic Myers.